Spinal screw



FIG. 1 is a first perspective view of a spinal screw showing my new design;

FIG. 2 is a partial enlarged view taken from the broken encircled portion 2 of FIG. 1;

FIG. 3 is a front view thereof;

FIG. 4 is a partial enlarged view taken from the broken encircled portion 4 of FIG.3;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is an enlarged top view thereof;

FIG. 9 is a partial enlarged view taken from the broken encircled portion 9 of FIG. 8;

FIG. 10 is a bottom view thereof; and,

FIG. 11 is a second perspective view thereof in an exemplary use.

The dash-dash broken lines show environmental structure that forms no part of the claimed design. The dot-dash broken lines represent the boundaries of the claimed design. 

CLAIM The ornamental design for a spinal screw, as shown and described. 